Trigger event to allow page content to be altered before display

Modules/Page/Entities/Page.php

@@ -5,6 +5,7 @@ namespace Modules\Page\Entities;
 use Dimsav\Translatable\Translatable;
 use Illuminate\Database\Eloquent\Model;
 use Modules\Core\Traits\NamespacedEntity;
+use Modules\Page\Events\ContentIsRendering;
 use Modules\Tag\Contracts\TaggableInterface;
 use Modules\Tag\Traits\TaggableTrait;
 
@@ -47,6 +48,13 @@ class Page extends Model implements TaggableInterface
     ];
     protected static $entityNamespace = 'asgardcms/page';
 
+    public function getBodyAttribute($body)
+    {
+        event($event = new ContentIsRendering($body));
+
+        return $event->getBody();
+    }
+
     public function __call($method, $parameters)
     {
         #i: Convert array to dot notation

Modules/Page/Events/ContentIsRendering.php

+<?php
+
+namespace Modules\Page\Events;
+
+class ContentIsRendering
+{
+    /**
+     * @var string The body of the page to render
+     */
+    private $body;
+    private $original;
+
+    public function __construct($body)
+    {
+        $this->body = $body;
+        $this->original = $body;
+    }
+
+    /**
+     * @return string
+     */
+    public function getBody()
+    {
+        return $this->body;
+    }
+
+    /**
+     * @param string $body
+     */
+    public function setBody($body)
+    {
+        $this->body = $body;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getOriginal()
+    {
+        return $this->original;
+    }
+
+    public function __toString()
+    {
+        return $this->getBody();
+    }
+}

Modules/Page/Tests/ContentIsRenderingTest.php

+<?php
+
+namespace Modules\Page\Tests;
+
+use Illuminate\Support\Facades\Event;
+use Modules\Page\Events\ContentIsRendering;
+
+class ContentIsRenderingTest extends BasePageTest
+{
+    /** @test */
+    public function it_can_change_final_content()
+    {
+        Event::listen(ContentIsRendering::class, function (ContentIsRendering $event) {
+            $event->setBody('<strong>' . $event->getOriginal() . '</strong>');
+        });
+
+        $page = $this->createPage();
+
+        $this->assertEquals('<strong>My Page Body</strong>', $page->body);
+    }
+
+    /** @test */
+    public function it_doesnt_alter_content_if_no_listeners()
+    {
+        $page = $this->createPage();
+
+        $this->assertEquals('My Page Body', $page->body);
+    }
+
+    private function createPage()
+    {
+        return $this->page->create([
+            'is_home' => '1',
+            'template' => 'default',
+            'en' => [
+                'title' => 'My Other Page',
+                'slug' => 'my-other-page',
+                'body' => 'My Page Body',
+            ],
+        ]);
+    }
+}